A method of forming a strained silicon layer created via a material mis-match with adjacent trench isolation, regions filled with a dielectric layer comprised with either a higher, or lower thermal expansion coefficient than that of silicon, has been developed. The ring-shaped friction surface consists of a radially inner, ring-shaped partial friction surface and an adjoining radially outer ring-shaped partial friction surface. Class CL to which pixel data set of the objective position belongs is then obtained using the pixel data sets of the tap. Oxidized species of the redox couples oxidize the biological waste molecules and are reduced and reoxidized.